Index: uspace/lib/libc/generic/devmap.c
===================================================================
--- uspace/lib/libc/generic/devmap.c	(revision bfd247f3d820ea49d8e1806e1e6e0c28b694ba0e)
+++ uspace/lib/libc/generic/devmap.c	(revision 497ae7b8817d26f340cea8a26b69a78067c2aeea)
@@ -219,4 +219,29 @@
 }
 
+int devmap_null_create(void)
+{
+	int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);
+	
+	if (phone < 0)
+		return -1;
+	
+	ipcarg_t null_id;
+	int retval = async_req_0_1(phone, DEVMAP_DEVICE_NULL_CREATE, &null_id);
+	if (retval != EOK)
+		return -1;
+	
+	return (int) null_id;
+}
+
+void devmap_null_destroy(int null_id)
+{
+	int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);
+	
+	if (phone < 0)
+		return;
+	
+	async_req_1_0(phone, DEVMAP_DEVICE_NULL_DESTROY, (ipcarg_t) null_id);
+}
+
 ipcarg_t devmap_device_get_count(void)
 {